Welding-torch.



H. BROUSSEAU. VWELDING 1011011.

APPLICATION FILED JUNE 12, 1909.

Patented May'16, 1911.

2 SHEETS-*SHEET I.

...nu-lI v H. BROUSSEAU. WELDING TOBOH.

Arrmon'lon FILED nm: 1a, 1909.

Patented May 16, 1911.

2 SHEETS-SHEET 2. 70 4@ Q/ I! l /l QJ "i Jo i I .JT i "45 l 45 l 46 @y i i i Y/Q-f @y i 5f 69 i 60 55 J9 40 i INI/Enron 58 64 Lbuoussww 442 er c @WLM/@MKZ TTORNE YS unrrhn STATES 'PATENT oFFIcE,

HARRY BROUSSEAU, OF NEW YORK. 1\T.`Y., ASSIGNOR OF ONE-HALF TOMARCUS STRN,

OF NEW YORK, N. Y. l

WELDING-TORCH.

To all whom it may concern: v

Be it known that I, Hanni BnoUssnAU, a citizen of the United States, and a resident of New York, county and State of New York, have invented certain new and use'ful Improvements in Welding-Torches, of which the following is a full, clear, and exact description.

This invention relates more particularly to a welding torch which is adapted also to cut metal.

The primary object of the invention -1s to provide a simple and efficient device 1n which the gas producing the heat flame may be properly and thoroughly mixed and thereby make the device more effective than is the case with such devices as ordinarily constructed.

. Otherobjectsof the invention are to provide simple and efficient means whereby the vdevice is adapted for cutting purposes, and 'to provide simple means whereby the cutting part of the device may be shift-ed to' avoid the necessity for moving the. tool about the work.

4A further object of the invention is to provide a simple and efficient device for preventing the flame under any condition from passing backward into the source of supply of the gas or gases.l

A'still further object of the invention is to provide a device which may be readily.

made and assembled.

With these and other objects in view, the invention will be hereinafter more partielllarly described with reference to the accompanying drawings, which torm a part oflthis specification, and will then be pointed out in the claims at the end of the description.

In the drawings, Figure 'l is a longitudinal section of onc t'orin of device embodying my invcntibn. Fig. 2 is a transverse section taken on the line II-II of Fig. 1. Fig. 5l

is a longitudinal section ot' a tool adapted` simply for welding purposes, only part of- 4 is a transf the same beingshown.' Fig. verse section taken on the line lV--V of Fig. 3. Fig. Eris a transverse section taken on the line IVLJV o'f Fig. 3. Fig. 5 is a side elevation, partly iny section, showing the ineans for handling the device. Fig. t3 is an elevation, partly broken away, of the gas mixing device or element. Fig. 7 is a plan view oit' the gas mixing devic Fig. 8 is an elevation of'a tool shown for, welding Specification of Letters Patent. Application mea June 12, 1909. serial No. sarees.

lsion 13,

Patented May 16, 1911.

part 12. -The head 10 is provided at one side thereof with anI extending part 13, and connected with this part is a pipe or connection 14 through which oxygen or other gas is adapted to pass. The part 13 is provided with a passage way 15 which comn'lunicates with the pipe 14, and' Within the member 12 is a tubular part or nipple 16 having a reduced opening 17 which communicates with the angular passage 15, and said nipple opens into a chamber or passageway 18 in the member 12. This member 12 has one end fitting against a shoulder 19 of the head or casinglO, and its other end fitting into a recess as 20 in the nozzle or tip 2l, and said nozzle 21 has a shoulder 22 which is adapted to be engaged by a-nut 23, the threaded lportion of which engagesA the lthreaded end`|24l of the casing or head 10 so that said nozzle 21, head 10,`and member 12v may be rigidly clamped and held together in such a way as to'form a gas seal between the same, though in case it is desired to turn or rotate the nozzle 21 for any purpose, this can be readily done by releasing the4 nut23 to simply rotate the nozzle 21, or the nut permits the removal ot' the nozzle if so de-f sired. e

The casing or head 10 is provided with a tubular extension 25 .adjacent to the extenpipe 26 to which acetyleneor other gas may be caused to pass. The casing .10 has its chamber 'l1 somewhat enlarged, as at 27, so as to coinlnunieate with a plurality of inclined or dowiiwardly-extending openings 28 which connnunicate Awith the source of acetylene gas supply 26 and with the mixing chamber or passage-way 1S within the member l2. so that the acetylene gas may be properly supplied to the passage 18 and thus. lneet. the oxygen gas passing th'io'ugh the opening 17 ofthe nozzle 16 from the passageway 15. The oxygen gas under pressure meets the acetylene gas as it asses from the nipple lt and the pressure ot the oxygen gas being greater than that of the acetylene, the action will bc somewhat the same as an injector and the two gases will move toand attached 'to this extension-is a los ' side of the flange 30 ber 12 is flared, as at 33, at one end `to form an annular space about the projection 31, While the nozzle 21 has an opening or passage 34C therethrough which is flared, as at 35, to provide an .annular space about the projection 32. The flange 30 is provided 'with a number ofjopenings 36 in the flange 30 around the vprojections 31 and 32, and these openings are arranged infpairs and each pair is inclined toward each other so that as the gas passes through said openin they Will be caused to intersect eachother in the form of jets. The oxygen gas from the connection 14: in passing through vthe nozzle 16 will meet the acetylene gas from the pipe 26 and'both gases under pressure will pass to the mixing device 29. and hy reason of the openings and particularly the inclination of the alternating openings will cause a better mixture ot the gas and therefore a moreeifective heat generated thereby when lighted. The flared part 35 is in alinement with the flared part 33 of the chamber y18 and forms a continuation thereof, and the area of the flared parts 33 and 35 and the 'openings 36 as compared to that of the pas sage 311- and smaller end of the chamber 18 is such that the `gases will pass freely and thereby avoid any back pressure whatever, the area of the flared part being larger and the flow of the gas as it leaves the nozzle being the same as when it` enters the chamber 18.

The gas, either oxygen or acetylene, may be forced into the casing 11 and controlled in any desiredway. As showin the pipe 26 leads to the handle portion 2T, and this handle portion comprises a cylin-.lrical casing 3S the ends of which are closed by the caps 39 and 40, and within the casingir is arranged mineral wool or asbestos 4-1. A nipple 42 projects outward from the head 39, and on the nipple is a nut 43 which is adapted to engage the end 411 of the'pipc 26 so as to hold the same detachably to the nipple 42. and leading to the casing is a snpr ply pipel 44- which is held to the end of the head 40 so that the acetylene gas may be forced within the handle under any desired pressure andmay be caused to pass through a nou-combustible material as asbestos or mineral wool 41 to the pipe 26,v the purpose 'of the asl'iesto-i being to prei/ont a llame from passing backward from the torch to the source of `gas supply oi" to liurn the hand of the operator. The pipe 14: for or has a coupling nut y#l5 for securing the e to a pipe '16 which extends through the 70 handle 3T and may be held in an;7 desired way in the casing heads, the/.said pipes lieing 'provid `d with valves or other means to control the supply of gas.

lVhen the device is adapted for cutting metal, l' provide 4the casing or head l0 with a threaded extension i7 to which is hold a nut l13, and this nut engages the flange 11S) of a pipe 50 leading` to a source of oxygen supply. The pipe 50 may be of anyv de# sired length and may he made to pass through the handle 37 or he supported there on, as by lugs, so that said pipe may be readily disconnected at,- will. The pressure of the through the pipe 50 is much greater than that. through the pipe 25 or the pipe 26, and is utilized with the weldingflame. For example, if the pressure of the acetylene is from one to five pounds` leading from the pipe 26 the pressure'of the oxygen gas through the pipe 25 may be twenty-five pounds, and that through thc pipe 50 may be fifty poundsl or any drsired pressure. the etlect being to secure a very high degree of heat by the burn-l ing of the gases afterthey leave the nozzle 21. The casing 10 has a passage 51 communicating with the pipe 50, and this pas-v sage communicates with one of two channels 52 o'f the member 12` and at the upper and lower ends of the member l12 .are annular chambers or grooves and 54 respectively, which connectthe two cha unels 52 together. The second channel 52 connnunicates with a channel o'r passage 55 of the nozzle 21, and at. the lower end 'said passage is angularly formed, as at 56, and somewhat re duced, and is intended to direct the oxygen gas from the passage 55 into the gas escaping through the passage 34 and to unite therewith as the latter is burning. ly .providing the annular groove or chamber 5i, it will be seen that the nozzle 21 maybe rota ted or be moved to different positions and the passage 55 will always con'ununicate with the passage 52, so that it will be unnecessary for the tool to he moved around as is usually required in cutting. as the nozzle itself can be readily shifted tby releasing the nut 23 to permit. thr.` nozzle to be rotated.

.Tn Figs. 3, 4, 1 and 8. the device is con: structed simply for welding and not ,for weldingand cutting metal as in the other form. Hcreethe nozzle as 57, is substantially-thesame as the nozzle 21 except thatl the passage 55 is dispensed witln aud said nozzle is connected to the member 12. and between the member 12 and nozzleJiT is the mixing device 29 substantially the same as ilo , shown in the other figures, -The casino' ll) 175i;-

'held by a nut 59 to the end of the nozzle 60.

The nozzle 60 is provided with a` passage G1 extending therethrough and used simply for Welding purposes and when used for cut-,

ting purposes, the said nozzle is provided with a passage-Wav 62 which communicates with an annular chamber 63 in the end of the nozzle, and leading from the chamber through the nozzle tip is a passage-way 64 for cutting purposes.

From the foregoing it will be seen that a simple and efficient means is provided whereby oxygen and acetylene gases may be thoroughly mixed Within. the torch, thereby producing a more etfective heat; that said device is simple in construction and may be readily made and assembled; that a simple device is provided for thoroughly mixing the gases;' that said device is adapted for either welding or cutting purposes; that simple means is provided whereby the gases may be positively controlled; and that said gas mixing device while arranged in the path o't' movement of the gas is so constructed that the gas may pass by the same freely without; any back pressure resulting 'from the use otl said device.

Having tbu's described my invention, .l claim as new and desire to secure by Letters Patent l.. A torch, comprising a head having a chamber, a nozzle held to the head, a mixing `device having parts projecting into the head and the nozzle. and means for supplying dtl'ercnt gases to the chamber and said dcvice.

2. A device of the character described. comprising a head having a chamber, means for supplying ditl'erent kinds otl gifs to said head, and a device having a part projecting into said chamber and having openings dividing the same into a series ot intersecting jets to thoroughly .mix the same.

3. A torch of the character described, comprising a head, means 'for supplying dit- Yferent kinds ot' gas to said head, and a device having it'ori'ardly-extending openings arranged in pa rts and anjg'nlarljr disposed with relation to cach other for giving a mixing action to the gases.

4. A devicc ot 'the character described, comprising a head having a chamber therein, means for supplying diii'ercnt kinds of gas to said chainl'icr under pressure and a device entering' said chainlicr and dividing the gases into a series ot intersecting jets to thoroughly mix the same.

A device ot tbc character described,

comprising a head having a mixing c'haniber. means 4for supplying two differentl kinds'of gas to said chamber to mingle therein, and a device having parts projecting into the chamber and having angularly disposed openings to divide the gas4 and to cause the f same to intersect in jets to thoroughly mix the `same. A

6. A device of the character described, comprising a head havinga source of supply for oxygen and acetylene gas, a cylindrical member held within the head and having a chamber therein and inclined openings communicating with the source 'of acetylene gas supply, saidchamber also communicating with the source of oxygenl supply, a nozzle detachably held to the head, and a mixing device interposed between the cylindrical member and the nozzle.

7. A device of the character described, comprising a head having a source of vsupply for oxygen and acetylene gas, a cylindrical` member held withinithe head and having a chamber therein and inclined openings communicating with the source of acetylene gas, said chamber also connnunicat-ing with the source of oxygen supply, a nozzle held to the head, means whereby the nozzle may be rotated, and a mixing' device interposed between the cylindrical member and the nozzle and dividing the gas into a series of intersecting jets.

A device ot' the character described, comprising a casing having a chamber, a nozzle, independent meansl for supplying different. gases to the chamber, and a mixing device comprising a disk having conical projecting parts on opposite sides thereof and with openings arranged in pairs and in-` clined toward eachother and communicating with said chamber and with the nozzle.

t). A device of the character described, comprising a casing having an inner chamber. independent means t'or supplying dii-, ferent gases to the chamber, and a mixing 110 device comprising a disk-like part and parts projecting on' oppositie sides thereof, and with openings arranged in pairs in the disklike part and inclined toward cach othc and connnunicating' with said chamber. y

l0. A device of the chari'ictcr described, comprising a head, Vindcpciulcnt means for supplying diti'erent' gases to the head. and a mixing device having projecting parts. and openings arranged to divide tbc gas` and 120 cause the divided gas to intersect in its paS-, sage through the head.

ll. In a torch of the character described,

a mixing device comprising a perforated' part having parts jn'ojccting therefrom. and 125 with olwningsy arranged in pairs and inclined toward cach other. t

1Q. In a device ot' the. character described, the comliination with a head having a c vlindrical chamber therein, of a cylindrical 130 member held within the chainber and having' a passage theretlnfoupjh. one end oi said passage being flared and torn'iing a chamber, ay part in'ojectiug inward within thc chamba-r ot thel inei'nber from tht head, f source vot oxygen gas supply for .ne project-- in oj part. a source ot acctylenegas supply, said cylindrical member having` inclined openings (,foinuiunicating with the source oi' acetylene 4njas supply and located adjacent to the pr.' 'rctingi part ot thcrhead, a nozzle having;v a i saale therethrough and inivingf a2 enlarged rnd, a nur detacliably holding the nozzle to the head and tothe inner menibcr. and a mixingdevice interposed between the inner cylindrical member and the nozzle.

1.25. ln a device oi the character described, thc combination with ahead having a charnber therein, of a member held Within the chamber and havinga gas passage thercthrough, one. end ot such passage being flared, a part projecting inward Within the passage of the member from the head, a source ot oxygen `gras supply for the project.- ine; part, a source of acetylenegas supply, said member having inclined openings coniinuuicating with the source ot acetylene gas supply and located adjacent to the projecting part of the head, a nozzle having; va passage therethrough, means for rotatably holding' the .nozzle to the head, and a mixing device.intterposed between the inner member and the nozzle. I

lll. In a. device of the cha 'acter described, a head having independent sources of gas supply, and a mixing device arranged in the path of thegascs and coinl'irising a base having a plurality of openings arranged in pairs, and inclined toward each other and with conical projections on opposite sides of the lease and of relatively diierent lengths and serving totliorouglily mix and stir the gases as they pass by said device.

15. Aitorcli comprisingv a head,- a source of` gas supply, and a nozzle having a cutting,l and a Welding passage therethrough rotatable on said head.

16. A ltorch comprising a head, means tor uniting oxygen and acetylene gas under pressure for a welding" llame, a rotatable nozzle having independent passages for welding and cutting purposes, and means for supplying oxygen under a greater pres- Lsure to the cutting passage to produce a cutting flame.

17. A torch comprising a. head, a nozzle rotatable on said head, means 'For supliilying a mixture of oxygen and acetylene `gas under pressure to the nozzle, and independent means oiwsinnilying oxygen gas to the nozzle under `renter pressure to unite with thev lother gas 'for cutting purposes. f

18. In a device ot the character described,

the combination with a head, of a nozzle detachably held thereto and adapted to be rotated thereon, said nozzle having independent cutting' and weldingl passages tliere through, and a mixing;` device arranged between the head and the nozzle.

19. ln a device ot the character described, the combination with a head, of a cylindrical member arranged within the head and having a central passage and independent passages at the side of the central passage, independent sour ,es of gas supply connected to said central passage, a third source oit' gas supply communicating with the outer passages, a nozzle having independent pas sage-ways therethrough communicating with the passagesct the inner cylindrical mein- .'bei', one ot' said passages through the `nozzle having` its outerend arranged at an angle to direct the gas toward the mouth of the other passage.

20. In a device of the character described, the combination with a head having a welding passage, means for supplying oxygen and acetylene gases to said passage, said head having a cutting passage for oxygen4 gas independent of the other passage, a noz zle having independent Welding and cutting passages of relatively different diamleters communicating with the Welding and cutting passages of the head, and means for sul'qilyingoxygen gas under greater press sure to the cuttingl passage.

Q1. ln a device of the character described, the combination withy a head, of a nozzle held to the head, and a carbon tip rotatably held on the end of the nozzle.

22. In a device otztlie character described, the combination with a head, .of a nozzle held to the head, and a carbon tip held on the end of the nozzle.

111,21 device of the character described, the combination with a head, oil a'iiozzle held to the head, and a carbon tip rotatably ,held on the end ot the nozzle and provided 

